Abstract
In order to realize energy saving at university campus, it is necessary to utilize renewable and unutilezed energy existing in the campus. In this paper, the performance of air conditioning system that uses pond water as heat source for heat pump (HP) is investigated using system simulation. Simulation results show that primary energy consumption of the HP using pond water is reduced compared to the system with air-source heat pump especially in the summer and winter when outdoor air conditions are severe. However, the energy consumption of the additional pumps for water-source system has increased.